In article ,
Doug Smith W9WI wrote:

But the FCC had a hard enough time fitting the DTV assignments into the
channels they have. Even dropping one or two might prove a serious
problem...

There would be enough bandwidth in a couple of 6-MHz TV channels to
make Eureka 147 work for every station in most markets....

On a more politically-correct note, there are interference constraints
between 8VSB transmissions on channel 6 and NCE-FM assignments which
resulted in very few TV stations being allocated DTV 6. (I think I
only found two when I looked. One of the original assignments was for
WCTX New Haven (moving from 59); they found that the constraints on
their power as a channel 6 were so confining that they arranged an
allocation swap with very-low-power WEDY New Haven, which didn't need
the coverage.) So it's conceivable that, after the transitional
period is through, channel 6 could still be cleared for other
purposes.

-GAWollman

--
Garrett A. Wollman | As the Constitution endures, persons in every
| generation can invoke its principles in their own
Opinions not those of| search for greater freedom.
MIT, LCS, CRS, or NSA| - A. Kennedy, Lawrence v. Texas, 539 U.S. ___ (2003)